| A | B |
|---|
| quadrilateral | A four-sided polygon |
| parallel | Aways the same distance apart. |
| side | A line segment connected to other segments to form a polygon. |
| angle | Two rays that share an endpoint. |
| trapezoid | A quadrilateral with exactly one pair of parallel sides. |
| congruent | Having exactly the same size and shape. |
| acute angle | An angle with a measure less than 90* |
| obtuse angle | An angle with a measure greater than 90* and less than 180* |
| property | A special quality or characteristic of something. |
| interior angle | any angle formed in the area of a pair of lines when a third line cuts them. |
| rhombus | A parallelogram with all four sides equal in length. |
| rectangle | A quadrilateral with two pairs of congruent, parallel sides and four right angles. |
| square | A parallelogram with four congruent sides and four right angles. |
